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Level 9 - f0x3rr
Challenge
You are given a website
Solution
In the website, f0x3rr is a endpoint
Click Download and a file will be downloaded
Convert this decimal to string using online converter and you’ll get a github and in the issue section there will be a password hidden in the conversation
Password is zero-day
When you visit the endpoint, click the download button and you’ll Zypher event poster
Scan the QR code and you’ll get a base64 encoded string, decode it and you’ll get a link an endpoint /vitcyscomzypher
Go to the endpoint and download the file
Convert the binary to string
Decoding the Caesar cipher
Flag
zyp{language_en}